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NS PETERS. pHoro-LITHQGRAFHER. WASHINGTON n O EDWARDl G. snomuorCARTHAGE, -NEW YoR'K.

Letiers Patent No. 95,277,`daied Sqltembefr 28,1869. I

t IMPROVED SHAFT-CQUPLING- The Schedule referred to in these LetteraPatent and making pa'xt of the same.

To all whom it mfr/y concern:

Be it known that I, EDWARDG. SHORTT, of Oarthage, in the county of Jeferson, and State of New York, have invented a new and improvedShaft-Couplingg and I do hereby declare 'that the following is a full,clear, and exact description thereof, which will en; able others skilledin the art tomake and use the same, reference being had to theaccompanying drawings, forming part of' th'is specification.

The object of thisfinventon` is to provide animproved mode of couplingshafts together, and comprises a pair of curved wedges, a sleeve, a pairof' set-screws,

`and radial pins in the shafts, which are used by plac- .ingthe wedges,which have semicircular grooves, for

fitting the shafts on the two sections to be joined together, andplacing the sleeve over. them, to which they are fitted, and thenscrewing the set screws through the sides of the sleeve, into conicalrecesses in the said wedges, to clamp them tightly between the Y shaftsand the interior wall of the sleeve, all as hereinafter more fullyspecified. v

Figure .1 represents a side elevation of my improved coupling, joiningtwo sections of a shaft;

Figure 2 represents a transverse sectionl of ,the same,`taken on theline :c xof fig. l; and

Figure 3 represents a longitudinal section of' the same, taken on theline y y of fig. l.

A .represents a pair of curved wedges, made by boring a longitudinalhole through a cylindrical block eccentrcally to the centre, and thensplitting the said'- block on a radial line drawn through the centres ofthethickest and thinnest sides.` The said bore is intended to be thesame size as the shafts to be coupled.

B represents a sleeve, having a longitudinal hole of the same diameteras the said wedges. It is also bored eccentrically, for adjustment withthe eccentric wedges, so that the said sleeve may be centred with theshaft.

These wedges have conical cavities O at the heads, for the reception ofthe conical setscrews D, which are screwed in through radial holes inthe sleeve, for wedging them apart, and thereby clamping them tightlybetween the shafts and the sleeves-B.

The said shafts have pins E rising up Vbetween the wedges, foroperation, in conjunction with the friction thus imparted to the saidlshafts, as a further means of prevent-ing them from turning.

'lhe whole constitutes av simple and efficient coupling, calculated tohold the shafts 'rigidly and truly to- Having thus described myinvention,

I claimas new,` and desireto secure by Letters Patcnt` The combination,with the shafts provided with `the pins E, of the eccentrically-boredwedges A and seitscrewsA D, substantially as specified.

EDWARDG. SHORTT.

Witnesses:

Znnorus WOOD, CHRISTIAN OBERLY.1

